All servers
Every listed MCP server — filter by category, type, hosting, and auth.
Guided walkthroughs that play on your real prototype, with your team's feedback for your agent.
Find people asking for or seeking alternatives to a product, live from Stack Exchange and Bluesky.
IP geolocation: country, EU status, region, city, time zone and ASN for any IPv4/IPv6 address.
Read-only catalog of 660 real, sourced AI agent use cases with tools, cost and setup prompts.
Ask who calls a route, what a change breaks or who reads a field, across a system's repos.
Find brands, logos and brandmarks, and manage brand subscriptions and webhooks with Logo.dev.
Long-term memory for AI assistants: search, read and save your notes, links and documents.
Free repository documentation for MCP and A2A agents. Bounded no-signup trial with shared cache.
Nutrition facts for 24,000+ menu items of 100+ Japanese restaurant chains, with sources.
Traditional color names (Japanese and 10 more cultures) with hex/RGB and sources; name a hex.
Public holidays, business days and long weekends for Japan (Cabinet Office) and 245 other countries.
Play Japanese shiritori with a 90,000-word dictionary: check moves, suggest next words.
x402 pay-per-call data for agents: LLM prices, MCP/x402 directories, holidays, FX, page checks.
ProofRun: bounded HTTP acceptance checks for agent deployments. $0.01 USDC per pack.
Pay-per-call x402 Amazon product, search and review data for AI agents. USDC on Base, no API key.
Pay-per-call x402 arXiv paper search, metadata, abstracts, and category listings.
Pay-per-call x402 npm and PyPI package metadata, versions, search, download counts.
x402 FX, time, weather, HN, holidays, geocoding for agents.
Pay-per-call x402 stock, ETF, index, FX and crypto quotes, OHLCV history, ticker and coin search.
Pay-per-call x402 web search results, news search and search autocomplete suggestions for agents.
Pay-per-call x402 Telegram channels, Mastodon tags, Bluesky, Hacker News, Lobsters data.
Mail one-off USPS letters from ChatGPT or Claude after you approve the preview and price. US only.
Patent prior-art search, claim comparison, and codebase scans for patentable tech (patent_scan).
US medication lookup: drug search, forms and strengths, NDC/RxCUI, recalls, shortages.